decrow



(No Model.)

Patented Mar. 7, I899. D. A. DECROW.

PUMPING ENGINE.

(Application filed Aug. 27, 1897.)

' 2 Shaets-Sheet I.

No. 620,644. Patented Mar. 7, I899.

D. A. DECRUW.

PUMPING ENGINE. (Application filed. Aug. 27, 1897.) (No Model.) 2 ShaetsSheet 2.

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UNITED STATES 1 PATENT .OFFICE.

DAVID A. DECROW, OF LOOKPORT, NEW YORK, ASSIGNOR OF ONE-HALF TO THE HOLLY MANUFACTURING COMPANY, OF SAME PLACE.

PUMPING-ENGINE.

SPECIFICATION forming part of Letters Patent No. 620,644, dated March '7, 1899. Application filed Angust27, 1897- Serial No. 649,6 86. (N0 model.)

To all whom it may concern:

Be it known that I, DAVID A. DEoRoW, a citizen of the United States, residing at Lockport, in the county of Niagara and State of New York, have invented a new and useful Pumping-Engine, of which the following is a specification.

This invention relates to pumping-engines, and particularly to vertical pumping-engines in which the steam or other motor is placed above the pump.

The objects of my invention are to provide sufficient room for the valves without necessitating the use of objectionably large valvechamber castings.

A further object of the invention is to divide the flow of liquid between two or more sets of valve-chambers and two or more lines of pipe, thereby reducing the size of the parts and the space required therefor.

Afurther object of the invention is to provide means for supporting the machinery above the pumps without the use of tall masonry piers and in such manner that any part of the pumps or valve-chambers may be removed without displacing or shoring up other parts of the machinery.

Afurther object of the invention is to pro vide a construction wherein the valves are placed in chambers formed separately from the plunger cylinder, but communicating therewith by suitable passages for the liquid being pumped. Other and further objects of the invention will appear more fully hereinafter.

Referring to the accompanying drawings, Figure 1 is avertical end view of a pumping engine embodying the principles of my invention, parts in side elevation and parts in vertical central section, on the line 3 at, Fig. 2. Fig. 2 is a plan View showing three sets of pumping machinery arranged side by side and adapted to be driven by a suitable motor or engine.

Similar parts are designated by the same reference sign wherever they occur throughout both figures of the drawings.

Heretofore in pumping-engines of the class to which my invention relates the pump has taken its supply of liquid through a single set of valves placed in one chamber and has discharged through another single set of valves placed in the same or another valve-chamber. This construction necessitates, except in smaller sizes of pumps, the use of objectionably large valve-chambers in order to provide sufficient room for the valves. Again, the steam or other motor above the pumps and by which the pumps are actuated has been supportedwholly or in part by tall masonry piers, thereby materially and objectionably interfering with the accessibility to the pumps, or else such engine or motor has been supported by the valve-chambers, thereby making it impossible to remove such chambers for repairs or the like without erecting temporary sup ports to take their place, or else at times by legs of iron or metal which prevent the placing of the'valve-chambers as near to the pumpchamber as is desirable or which interfere with the accessibility of the pumps and the removal of parts of the machinery. In order to avoid these and other objections and to provideas great a valve area as possible without objectionably large valve-chambers, and to provide a construction allowing of removal of portions of the supporting-pieces under the motor or engine without the use of false framing, and in order that the valve-chambers may be erected in as close proximity to the pumpcylinder as possible, I provide the following construction:

Reference-sign 9 designates a suitable motor of any desirable or convenient construction or type. In the particular form shown, to which, however, I do not desire to be limited or restricted, this motor comprises a steamengine of the vertical inverted triple expansion type. This engine is supported upon the base 11 by the upright frames 10 in any suitable or convenient manner. The details of construction and arrangement of this engine or motor form no part of my present invention, and therefore it is not necessary to describe the same further than by merely stating that generally cross-head l2, connectingrod 13, crank 14, and fiy-wheel 15 are connected by the rods 16 with the pump-plunger 17 in any usual, convenient, or ordinary manner. The pump-plunger moves in the pump chamber or body 19, which is provided with two passages 18,arranged opposite each other,

which are detachably connected by watertight joints to the passages or pipes 20, extending from valve-chambers 21. The base 11, which supports side frames 10, carrying or supporting the engine or motor, may in turn be supported either wholly or in part bythe legs or brackets 8, carried by or mounted on the base 31, which in turn may be supported upon the masonry foundation 32. The valvechambers 21 are provided with domes 22, and these domes are arranged to be detachably fastened to the engine-base 11, as shown, and, if desired, to support aportion at least of the weight of said base. The valve-chambers 21 and the pump-body 19 of each set of the pumping machinery may also be supported by the base 31 and masonry 32. The

pipe 28 is connected in any suitable or convenient manner to the liquid-supply and has branches connected, respectively, through the joints or bends 27 to passages 24: on opposite sides of the plunger-cylinder, which pipes 24 form passages which communicate or open into the valve-chambers 21 through suitable Valve-controlled openings 27. Similarly the domes 22 on opposite sides of the plunger-cylinder and communicating through suitable valve-controlled passages 28 with the valve-chamber also communicate through pipe connections 23 and the bends or joints 29 to a common T-j oint or common passage 30.

In practice I prefer to employ a plurality of the pumping machinery, as above described, and in Fig. 2 of the drawings I have shown three sets of said pumping machinery, the set 7, at one end thereof, being shown with the base 11 of the actuating machinery in position, the set 6 being shown only as to parts below the line 1 2, Fig. 1, and the set 5 being shown to the same extent as set 6, except that the legs 8 are omitted. It will be observed by reference to set 6, as shown in Fig. 2, that the valve-chambers and domes are arranged between the supporting-legs 8 on the respective sides of the pump. Where two or more sets of pumps are employed, I prefer to connect the several delivery or discharge domes 22'on each side of the apparatus together, as through pipe connection 25. Similarly I connect up the several passages 24 through pipe connections 26, as clearly shown.

The operation will be clearly understood from the foregoing description. At each upward stroke of the plunger 17 liquid is drawn through the supply-pipe connection 28, bends or joints 27, pipes 24 and 26, through the valve-controlled passages 27 to valve-chamber 21,passages 20 and l8,and enters the pumpcylinder. This operation takes place simultaneously throughout the several sets of pumps and also simultaneously through both the right-hand and left-hand valve-boxes. At

each downward stroke of the pump-plunger 17 the liquid is discharged from the pump-cylinder through the passages 18 and 20, valvechamber 21, the valve-controlled passages 28, domes 22, passages 23 and 25, and bends 29 to the common passage 30. This action also takes place simultaneously throughout the several sets of pumps and also simultaneously on opposite sides of each pump-cylinder. Thus it will be readily seen that I provide a large space for the valves, while at the same time I employ valve-chambers 21, small enough to be placed in close proximity to the pump-cylinder 19, thus securing the advantage of a short and direct passage without at the same time interfering with the legs 8, which support the motor above, and by. arranging the chambers 21 and domes 22 on each side of the pump-cylinder between adjacent legs 8 on the same side the comparatively small valve-chambers and domes when being removed or replaced may be conveniently passed between said legs without displacing the latter.

While I have shown in Fig. 2 three sets of pumps, I desire it to be understood that I do not limit or confine myself to the exact number of pumps employed, as any suitable or desirable number may be used.

It is obvious that valve-chambers 21 may be made in one or more pieces, according to the size required.

Of course it is obvious that the supply-pas sage 24 on each side of the pump may be independently connected to the supply, and similarly, if desired, the discharge-passages 23 on each side of the pump may be independently connected to the delivery or discharge passage instead of said passages being coupled together in a common supply or discharge pipe connection without departing from the spirit or scope of the invention.

Of course it is obvious that instead of employing a single-acting pump 19 I may, if de sired, use a double-acting pump.

Many other variations and alterations in the details of construction and arrangement would readily suggest themselves to persons skilled in the art and still fall within the spirit and scope of my invention. I desire it to be understood, therefore, that I do not limit or confine myself to the exact details of construction and arrangement shown and described; but 1 Having now set forth the object and nature of my invention and a form of apparatus embodying the principles thereof, what I claim as new and useful and of my own invention, and desire to secure by Letters Patent of the United States, is

1. In a pumping-engine, a pump, an operating-motor therefor, a valvechamber arranged on opposite sides of the pump and each communicating therewith, a supply-pipe having branches respectively communicating with said chambers, a dome communicating with each valve-chamber, and a dischargepipe, said discharge-pipe having branches respectively communicating with said dome, and a support for said motor, said support arranged to rest at opposite sides upon said domes, and a pair of supporting-legs on each ICC side of the pump for said motor-support, the legs on each side of the pump being arranged to straddle the valve-chamber on that side, as and for the purpose set forth.

2. In a pumping-engine, a supporting-base, a pump supported thereon, a valve-chamber also mounted on said base and arranged in communication with the cylinder of said pump, a supplypipe communicating With said chamber, a dome communicating with said valve-chamber, a discharge-pipe communicatin g With said dome, a motor for actuating said pump, said motor partly supported upon said dome and a pair of supporting-legs the members of said pair of legs resting on said base and arranged on opposite sides of said dome and valve-chamber for supporting said motor, as and for the purpose set forth.

3. In a pumping-engine, a supporting-base, a pump supported thereon, a valve-chamber, also supported upon said base, and arranged in communication with the cylinder of said pump, a supplypipe communicating with said valve-chamber, a dome also in communication With said chamber, a discharge-pipe communicating with said dome, a motor for operating said pump, a supporting-plate for said motor, said supporting-plate arranged to rest upon said dome, and supporting-legs for said plate, said legs resting on said base and arranged on opposite sides of said dome and chamber, as and for the purpose set forth.

4. In a pumping engine, a plurality of pumps, each including a pump-cylinder, a valve-chamber arranged on each side of each pump-cylinder and each chamber communicating With its corresponding cylinder, a supply-pipe having branches, one of said branches communicating with all the valve-chambers on one side and the other branch communicating With all the valve-chambers on the other side, a dome communicating with each valve-chamber, pipes connecting the respective domes on each side, a discharge-pipe having branches respectively connected to said dome-connecting pipes, and a motor for actuating each pump, each of said motors resting at each side upon the dome associated with its pump, and supporting-legs for each motor arranged at each side thereof, said legs on each side arranged to straddle the valvechamber and dome on the same side therewith, as and for the purpose set forth.

5. In a pumping-engine, asupporting-base, a plurality of pumps mounted thereon, a

valve-chamber arranged on each side of each pump and also supported upon said base, said valve-chambers communicating with the cylinder of their correspon ding pu mps, a supplypipe communicating with said Valve-chambers, a dischargepipe also communicating with said valve-chambers, a motor for actuating each pump, a supporting-plate for each 

